Project Cornerstone's mission is to educate the public about the importance of local construction aggregates (i.e., sand, gravel and crushed stone) through hands-on learning in Science, Technology, Engineering and Mathematics (STEM). Construction aggregates are used to build roads, houses, schools and all other infrastructure; they are the cornerstone of our communities.

Saturday, March 21, 2015 was the culmination of the seventh annual San Diego Festival of Science and Engineering. It's a week long event that highlights education in Science, Technology, Engineering, Arts and Mathematics (STEAM) and concludes with an EXPO Day at PETCO Park.

The EXPO Day drew thousands of people from around the county. The Project Cornerstone booth was a huge success with an estimated 1,200 students and parents participating in the concrete star activity.

Informational display at the Project Cornerstone booth.

At the booth, children and parents learned about the importance of construction aggregates and how it plays an integral role in their daily lives. Visitors were encouraged to make their own concrete using sand, gravel, cement and water. They poured their concrete mixtures into star molds, which they were able to take home.

The Project Cornerstone booth was quite popular among the festival's guests. As the event was closing, people were still asking our volunteers if they could make the "concrete stars." Of course, no one was turned away.

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Welcome to Project Cornerstone News!

We are Project Cornerstone, a nonprofit dedicated to educating the public about the importance of local construction aggregates (i.e., sand, gravel and crushed stone) through hands-on learning in Science, Technology, Engineering and Mathematics (STEM).

If your child has or will participate in a Project Cornerstone activity and their school/program does not already have a media release form in place, please download, complete and return a Project Cornerstone Media Release Form.

Project Cornerstone, Inc.

Project Cornerstone's mission is to educate the public about the importance of local construction aggregates (i.e., sand, gravel and crushed stone) through hands-on learning in Science, Technology, Engineering and Mathematics (STEM). Construction aggregates are used to build roads, houses, schools and all other infrastructure; they are the cornerstone of our communities.